Fluid-pressure governor.



J.jE. MENNINGEN. f FLUID PRESSURE GOVERNOR. .APPLICATION-DEED MAY 2051909.

1,048,424.l j .Patzented Dec.24,.1'9112;

1 58 @Agi 55 the diaphragm and cap UNITED STATES it? i y JOSEPH F. MENNINGEN, or* anais, wrcensm, sonreir?, .e Comoneri .l

gun

n or einer@ Lint? Application ineaMay 2o, 190s. seein ne. aereas.

To all fuffiom it may concern:

Be it `known that i, JOSEPH F. MEN'NIN- GEN, a citizen of the United States. residing at West Allis, in the county of Milwaukee and Stateo'lVisconsin, have invented certainnewanduseful Improvements in Fluid- Pressu-re Governors, of which the following is a full, clear, and exa-ct specification.

This invention relates to governors for that type of governor which includes an electric switch together with suitable means .for operating the switch so as to lclose or Vopen the cirouitof an electric motor-'Which drives a compressor when the liuid pressure varies beyond certain predetermined limits. The object of my invention is to improve the Voperation of fluid pressure governors,y

and more specifically toprovide. a quick land destrut'ztivearc.in0".

The invention consists incertain novel details of construction and combinations and arrangements of parts which will he de- [scribed in the specication and set forth in the accompanying claims.

Reference is 'had tothe accompanying .sheet of drawings, in Which- Figure 1 is a sectional vien7 taken through my invention.' parts being broken away for the sake of clearness and the switch being here shown open; Fig. 2 is a sectional view taken through the line 2-2 of Fig. l; Fig. 3 isla perspective view of the tripping mechanism employed in the operation ot the gov- 'ernor;Figs. 4 and 5 are partial sectional views of the tripping mechanism, the lat-terv diaphragm being clamped betivi mtlie apen end .of the cylinder and cured to the cylinder. ,tcita-serionssidefoi is eavityfor cham vfluid pressure systems and particularly to make. and break switch .to avoid vexcessive a governor constructed in accordance With' a cap ifi gwhich isseg Are (not shown) adaptedfftiill Vsockets l5. On the. opposite sfide of n phragm land engaging tl latter soa'sf'tdbei shifted inward and outi Varia' 'onsiiiiiV the exure thereof, isf? portion 16 of the plunger l ng''elisha-iik17A which extendsthroughktlic `lin`der`fand luisl its treo end eXtending-Qthr gli,an',fopening1 in the base 11a. Movement;giiiftlietpliingerf and of the diaphragm'jlois rcfsisftedfbv 'al rat-her heavy coil spring1Sivhichsui'runds the shank 17 of theg'pluiiger bears. against the enlarged portionlti thereof andi a. disk 19 which may, beiadjustedbviiset screws 2O extending through ;.tl, 1e"ba`sefl1%`of the casting and engagf gilie l(liti-k yB l adjusting these screws infthe u'elll.. knonn' manner, the high andloivi its of A pressure may be varied;` The outerffend of the plunger 17 is provided reduced. portion 21 and with a oit'l sliouldets orv flanges 22 and r23 between'ivhich'the end oa, lever, to ,be referred topresentl isfheld, and the latter of whichJl serves,A byfengage ment. ivith a block 23a. securedfto tll'xetopfof the base, to limit the inward.moverme,ntfofV the plunger. "fA t The switch l operating grn'echanism4 vvot theY governor is supported by a.frame .24;p1lrich is secured to the base lli by meansof screws.. Mounted on said 'ramefa l,secunedthereto is a casing inciosing tvvo `cyliriders fand; 26. A rod or foilower'27, which isltlattened, and slotted near one en ;djas,sliotvnin{li`ig, having a slidingl tit, operates,ingoneoithf, cylinders '25'. The other, cylinrfler .526,1 is mp3. vided with two chamhersf28z and `v vhicvll i terminate in ports 411and;42.respectively., which are connected alternatelyI.l with an eX?, haust port 14:8 through anfintermediategair: passageway. The cylinderis further. .provided with a piston SGHWorkinginthefirst,` mentioned chamber 28,and1 another piston? 31 Working'` in the'secondchamber 2 9... ,hesev Pistons `areV DIOVdBd' Dflclln '.3081 .f-lid 31 at their ends as shovvn Fig ,.l2.t`o,n iake an air tight fit, in the-@chambers Bothpis tons have reduced threadedportioiisf-SS an 33 respectively and operfi A noeition. Thepistonsp An i y am iel to The follower 27 andV chanieally",

f to it hvv meansof 41 and armer serviligii f `for the contact finger 36. A ,valve 37 comtime' the member 49 connected to the crank prising a casina` 38 inside `ofwhicli is an air chamber 39 and slide 40 having` an air pas sageway registering' in turn with the three ports 41, 42, and 48, is connected to the cylinder 26. This valve .will he connected to the fluid reservoir by a pipe i573.

A pin 44 having' an enlarged portion 4 5 and a reduced portion 4G extends through one side of the casing` 38 ot' the valve '37 and makes a snug lit therewith. The enlarged -portion 45 bears firmly againstthe casing',

thus prevent-ing' -an escape of the fluid due to a leak.- The reducedv portion the pinv which is eccentric to the enlarged portion of the pin engages av verticalgroove inthe slide '40, thelatter beine` ni-ade. to move in a recipnocatiiig motion b-v the action of a crank 47 which is fastened to the outer end'of-tlie pin 44. This crank issiven its motion from the action of the lever 48 through a rod or member 49 which ist pivotmembers 52 sliding` ally connected to said eccentric at 50 and to said lever at 51. Another rod or member 52 lwhich is provided with slots*- 5e is `pivotally connected at 54 to the outer end cf the lever 48. The two rods 2T and 52 foi-m the follower and tripping);y mechanism of the switch, the operation of which will'he presently explained.l An insulatingblock carrying,V a Contact seie'ment is mounted lon the casing' iiiclosinfr the cylinders and 26. Secured J,to-either side of said -hloclii and insulated from the contact segment 5G are the poles 57 of a blow-oiit magnet. "Ltr cated between these poles and supported therebyA at one extremity is the magnet core 58 which is vprovided with a coil ,vi'appel on a spool 59. The `blow-out magnet is conf nected in series with the motor circuit which includes the" switch, and the poles are.. lol cated so.v that the path of the tlux includes thepoint at which :thecircuit is made and broken.- In this way arcing is reduced to a minimum. V i'" l The eovernor, which 'may be located in any desired position relative to the co'iiipressor Will be adjusted by means of vscrews 2O seras to operate at a desired maximum or minimum pressure which may be varied between any desired points, say for example. between 90 pounds and 100 pounds. The range vof .pressure or the difference between the maxi mum and minimum pressuresinay be varied. byV varying' thedistan'ce between the slots 58' in the rod 52. Assuming that the switch-isf open and tlie'iiiotoij-ivliich drives the coinpresser is-stationary the plunger will move gradually inward,r'elative t-o thecyliiidei' as the fluid pressure 1s decreased andas the- -diaphragm becomes, less flexed. As the plun- -ger movesfinwaifcl the members 49 and'52 -tened poition'of'tlie follower 27. vT lien'the fare' ,qradiiallv 'moved outwardn one of the f u'pw'ard inea slot 60^i1i the follower 27 from the upper slot in said member 52 to the lower slot. Atthe `saine 47 operating; the slide'40 in the valve 37 in such a manner as to allow thecoinpressed.

in the slide to the exhaust port 148. J ust I at the moment the lower slot in the member 52 reaches the flattened portion of the l'ollower 27, the pressure under the diaphragm 12 has reached a ininiiiiiiim the pressure on the piston 31 iii cylinder. 26 has reached a tons-are forced to the right with ansnap ac- 'tion bymeai-is of -the fluid pressure,v thus4 -closiiig the electric Icircuit through the contact linger 36 andcontact segment 5G.v The follower 2T islocked, 'thus preventingits movement, by means of the member until the valve is wide open allowing thej .fullf' pressure to be exertedlon the piston 32..

This arrangement has been provided inl order to open and close the switch .with a quick sjiap action. t the instantl the electric circuit is closed` vthe'mo'tor is started and the compressed fluid is pumped through the.

.reservoir into` the cavity 14 under. the diaphragm 1 2, thus compressing` the springf 18- and movingthe 'plunger and shank 17 outward relativeto the cylinder. A t'the same A time the members 49. and 52 are drawn iiiwaidly. the former operatingthefslide and causing' it to move tol the right so as to al-v loivthe port to register withftlie air passageway-43 in said slide andcoiiiiclct with the exhaust port 148. and the upper slot of the latter'to' gradually approach .the flatuppei" slot in said member 52 has reached the flattened .portion of follower 27 the pressure on the diaphragm and plunger has become a maximum'as has tlie pressuie on the piston in cylinder 28. 'and the follower 27 and two pistons vare thrown or shifted to the left vwith a snap action, breaking'wthe' electric circuit. 'i i The mechanism .which kI have'jfdescribed above hasproven b v practice to be eitreniely -iellicient and l reliable and 'in fact answers all the requirements' of operation aiid 'piacticabilitv 4and att-lie same timeis'coinpact and inexpensive to manufacture. y

. lido not desire to be confined to the exact details' shown and described,` but aim in inv claims to cover all finoditications whichl do not involvea .departure from thev spirit and scope vof my. invention.

'1, In a governor for fluid pressure4 s vS- tems, a plunger responsive'- to-variations in fluid pressi'ii'e,- a switch responsive tothe action o f said plungrci-ia follower connected to said switch, muddled-movable member l' which the follower slides and for controlling the movement of said follower,

.and a valve for controlling the operation of 'said switch.

2. VIn a governorfor a fluid pressure system,-a plunger,4 responsive to variations in fluid pressure, a lever connected to said plunger', a member cooperating with said controlled by said slotted member', and al switch associated with theA follower and which is opened and closed by a fluid under pressure.

In a. governor fluid pressure, a lever connected to said plunger, a plurality of members cooperating with said lever, a valve responsive-to the movements of said lever transmitted through one of 4said members, a follower and a piston'the movement-s of both of which are vcontrolled by another of said members.

4. In a fluid pressure governona member responsive to variations in fluid pressure, a

pivoted lever connected to said member, a

. rod provided with slots and coperating with said lever, a switch Vresponsive to motion transmitted through said member, lever, and rod, and a follower associated with said switch and held againstI movement duringr a certain range of fluid pressure by said rod.

In a governor for a 4fluid pressure system. 'a plunger responsive to variations in fluid pressure, a. lever connected to said plunger. a switch responsive to motion transmitted through said plunger and lever, a member cooperating with Said lever, a valve adaptedto regulate a flow of fluid for effecting the positions of said switch and operated by a movement of said member, a plurality of cylinders adjacent said switch. a follower arranged to slide in one of saidcylinders, and another member connected to said lever and arranged to trip said follower.

(1..' In combination, in a governor for fluid pressure systems, a plunger responsive to variations in fluid preure, a pivoted lever connected to said p anger, a switch respon sive to motion transmittedthrough said plunger and lever, two niembers'coperating' with said lever. two cylinders adjacent said switch. twol pist-ons arranged to slide,

in one.cylinder. a.follower in the other said cylindensaid follower and said pistons connected to move simultaneously, a valve operated by one of said members to regulate the` flow of -fluidin one of saidcylinders.

the other said member for tripping said `follower to' permit the -of said switch;

opening and closing 7. In comb" ation, in a :tl'uidpressure govfor a fluid pressure sys? tem, a plunger responsive to variations in` Vswitch to be closed.

eriivor, a plunger Yresponsive'f-to variations in fluid pressure, a. lever "connectedftionsaid plunger,l la switch "responsive toy "motion transmitted by said .plunger 'through ,laid lever, a follower -provided with means for holding said follower against movement during a certain range of fluid pressure, said means comprising a slotted member coperating with said lever, said lever coperating.

with said plnger soithat when thel'atter is moved a certain amount in one direction said follower is shifted from one position to another to permit the switch to be vopened and when t-he plunger is moved acertain amount in the opposite direction, saidl follower is' shifted to another position to permit 'the 8. ln a governor for fluid pressure systems, a. plunger responsive to variations in fluid pressure, a lever connected to said plunger, a plurali-ty of membersl cooperating with said lever, a. switchV responsive to mo- `tion transmitted by said plunger through said lever and members, a valve operated by the action of one of said members, a'cylinder adjacent said switch and containing a plu,u rality of chambers, said valve to regulate the flow of fluid in said chambers', a followerl operated by another said member, a piston arranged in said cylinder and mechanically fastened to said vfollower 'providing for the simultaneous movementof said piston and said follower.

9.111 a governor' for fluid pressure-systeins, a. plunger responsive in more than one direction to variations in fluid pressure, a lever `connected to said-plunger,4 a switch controlled by the movement of, said lever, and means for opening and closing an elec tric circuit comprising a valve. a pistoi1.and a follower, the lat-ter of which is mechanically connected to said piston to cause a simultaneous movement of said piston'and follower when the electric circuit is opened or closed, the valve being movable ovjer a plurality of ports under different operating conditions, land a plurality of members mounted on said lever one for operating said valve andl another for tripping said follower. 4

l0. ln a governor for a fluid pressure s vs tem. a plunger responsive to variations in fluid pressure, a lever connected to said plunl ger, a plurality of members mounted on said lever, amvalve adapted to be actuated over a plurality of ports under different operating conditions byone of said members. a follower coi'epei'ating with the other said 'inemlier to trip said follower. and a piston moving said contacts into and ont of' engagement, a ,controlling valve', means crmioo inf-ising-g; plurality 'of' notched: mlvnloers of' Whchilternately lmoves 'inf the?notchesT of thel o'ther, 'and gconneoti ms between said parts! whereby -thevope'raton-,of said contact mowingI menne' is prevented until'fsaid valve islcompletelyopenednf' L 'if i y: -a'lf- -f 1121 fIn'oor-nbintion, switch contacts', `pneumatcally foperaed means for .moving .one of said eontacts ifnbof a11d-ou":ef. engagement with? winotherg aj Valve fon controlling .i said pneumatca'lyoperated/means; flneans for lock'ng` said-g movable? contact in' .position whnntheynre outvof engagementJ means "reepensive i150 *Variationswin fluid pre'ssu'r'e', and

manually-operated means forfmovlng one of 4said contadts into land outof engagement.

' -.When the conta-ets are-n 'engagement and lwhenfthey are out offen-gagement, means re* -sponsve to variations in ud pressure, and

contaet from said lockinthefpr'esence'of two' Witnesses.-

JQSEPHF. MENNTNGENS 'Wtnessesz l f CHAS. L. BYRON, Ref s.f]3j. STOLn lnea-ns," operated "by said' lastmentioned ,ineansforopemng ,sand valve" and then re; leaslng the 4movable l. In testimony whereof I'ax my sgnetulre', 

